<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>

	<%
		out.println("this is a pig");
		out.println("<button>测试</button>");
		String x = "猪猪";
	%>
	
	<%
		out.println(x);
		out.println("<script>alert('"+x+"')</script>");
	%>
	
	<%!
		int add(int a,int b){
			return a+b;
		}
	%>
	
	<%!
		private int age = 10;
	%>

	<%
		String msg = "操作成功";
	%>
	
	<label><% out.write(msg); %></label>
	<label><%=msg %></label>
	<button onclick="alert('<%=msg %>')">测试</button>

</body>
</html>